What common social media marketing mistakes should my business avoid?

Spamming, having multiple profiles on each platform and not interacting at all with the audience are some of the practices you should steer clear of. Some of these actions cause confusion, while others will determine your audience to downright un-follow and/or even report you.
Inconsistency is one of the main traps you could fall into. That could mean starting on a platform and abandoning it just to try another one. It could also mean publishing updates in a frantic manner. Putting some logic into how, when and where you post the social media posts could tighten the relationship with your audience. If not for anything else, your audience could learn when to expect your updates.